Spark arrester and extinguisher.



A. W. GRAHAM,

SPARK ARRESTER AND BXTINGUISHER.

APPLIUATON FILED JAN. 27, 1909. l

Patented @60.21, 319%.

ANDREW TAL'TER GRAHAM, 0

igllilltllili.

F HRADFO RD, PENNSYLVANIA.

SFAR/K ARRESTER AND EXTINGUISHEEL.

Specification oi" LettersPatent. Patented Klee.. 251, i909.

Application tiled January 2?', 1909.` Serial No. @J7/teil.V

To all whom it may concern:

Bo it known that l, ANDREW WALTER (limitan, citizen of the United States, residing at B adtord7 in the county oit McKean and State of Pennsylvania, have invented certain new and useful Improvements 'in Spark Arresters and Extinguishers, ot which the following is a specification.

This invention relates to spark orresters and has special reference to a device for retarding` the passage of cinders and sparks Without obstructing the l'loW ot' the gas from the stack.

The principal object of this invention is to provide an improved construction of spark arrester in which the sparks are caused to take a zigzag course in their passage through. a stack.

A second object ot the invention is to provide a novel means ottreating the sparks with sten-In during their passage.

lith the above and other objects in view the invention consists in certain novel details .of arrangement and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically set forth in the claims.

ln the accoinpanying,` drawings like char actors ot reference indicate like parts in the l several views. andi Figfg'ure ,l is a side elevation partly in section showing' the iront end ot' a. locomotive equipped with thisl invention. iig. 2 is an enlarged top plan View thereof. Fig. is a detail perspective of n portion of .the stack lining. Fig. 4 is a detail perspective partly in section of the transverse plates and pipes. Fig. 5 is a vertical section through one of the pi es.

'.lhe numeral 10 indicates the ront of a locomotive provided with the stoel; 11. lt is. to be understood, however, that this .device is adapted for use with other stacks than those on locomotives and the stack here shown is merely typical ot'ony such device.- 1Within the stock it and lying aga-inst the inner woll thereof is a plate provided with a innltiplieate of baille plates or l2 formed by punching ont und. striking;I np o. portion oi the inetal. lhesc baille. lugs project, inward and muy he slightly inclined in either direction.

ln order lo allow the plate lo he adjusted to lil. varying; sir/cs ol stacks il' is provided ou one algo with a plnrolily of sl ts ll where through extend bolts l5 whiwh servo to hold the edges otthe plate in adjusted position. Other bolts also serve to hold the plate 12 in proper position in the stack.

Centrally located in the stack are plates 17 each of which is provided with baille lugs 18 struck up in the saine manner as the lugs 13 but the lugs 1S project from both faces of each plate. The plates 17 'are preferably arranged at right angles ond are of such Width that they may be fittedin any stach. being arranged with their edges in spaced relation to the Wall of the stach and supported from the top thereoic by means of brackets 19 held by the bolts 16. lt is to be observed that Itlieiplates 17 may be positioned so that thelower ends thereof project below the base of the stack.

At Q0 is indicated a main steam pipe connected to any suitable source ot steam not deemed necessary here to be shown. At the upper end of this pipe is earried'a head Q1 with which is connected pipes 22 having` closed ends 23 and being provided with a. multiplicity ot perforetions Q4 arranged throughout its length preferably in the torni of upwardly inclined slits. These pipes are supported. by brackets 25 .bolted to the stack lining as 211326.

ln the operation oil the Vdevice the ei;- haust gases carrying the sparks and einders pass through the stack the iets ot steam issuing from the perforations 2i strike the ascending spat-lts and drive there against one olf the plates 'provided with baisie lugs. As the sparks strike these ings they are thrown back but still nieve np slightly and strike ogoinst'other baille lugs when the op eration repeated. The spark thus moves along,r the stat-lc et e, very slow' rate and in consequence is extinguished by the moist steam before it leaves the stack. llnrthermore the beating ot' the sparks against the lugs pnlverizes them and when they are ejected the upward motion will he so slowv that they will. fall in the iinmediote vicinity. ln addition to this not onlf does the steam heat the sinn-lts plates also creat-es an upward tir l the upward inclino lt is to he el tine: vs al ci .t .or n., well es one which in 1 readily 'applied to any existing; engine it being merely necessary to loi-ver the devine wild in the stack, secure it in place with the bolts and connect the pipe-to an exhaust or steam pip? by the ordinary union. i

aving thus described the invention, what bination with a stack, of opposing surfaces arranged therein and provided with 'amultiplieity of baille lugs, and .a steam pipe, disposed between said surfaces, having a series of stean discharge openings, the lugs and steam jets being arranged to eliect a constant to and fro movement of the sparks throughout approximately the full height of 15 the stack. i y

- 2. In a spark retarding device, a stack, a

lining therefor having a multiplicity of -up- Werdly and inw ardly inclined ballie lugs, diametrieally disposed plates having their edges spaced from the lining and provided with upwardly inclined baile lno's and steam pipes provided with a multiplicity of upwardly inclined slits held in the angles vformed by said plates and in spaced relation thereto.

In testimony whereof I affix my signature, in presence oi two witnesses.

ANDRE W 'WALTER GRAU AM. Witnesses MAY M. FLYER, ALBERT Perkins. 

